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Technology

The practical application of knowledge, especially in a particular area, is called technology. Advances in technology affect every area of our lives. This category is for questions about technology and includes everything from how to remove a scratch from a CD to applications of electronics to what polyester is made from and more.

35,090 Questions

What are the Six basic types of motion?

The six basic types of motion are linear motion (straight-line motion), circular motion (rotation along a curve), reciprocating motion (back-and-forth motion), oscillating motion (repetitive swinging motion), vibratory motion (small rapid movements), and random motion (irregular movement in all directions).

Why does a glass tumbler crack on powering very hot liquid into it?

First you have to understand that everything gets bigger and smaller when its temperature changes. Maybe you remember seeing someone try to put a metal ball through a metal ring. When the ball and the ring are the same temperature, the ball will not go through the ring. If you then heat up the ring, the ball will go through the ring. This is because the ring gets bigger when heated. Thermometers use this same property to measure the temperature outside. You may have seen that some thermometers have either a red or silver line in them that goes up and down as the temperature changes. Other thermometers use what looks like a spring that is attached to a pionter. That "spring" is actually made from two different metals. Since each metal grows or shrinks differently and since they are attached together, the "spring" bends.

Second, and you probably already know this, is that different things can be bend a long ways before they break and other things can bend very little before they break. Most plastic can be bent a long way, or even bent several times, before it breaks. On the otherhand, glass can only bend a little bit before it breaks.

If the glass is thick enough and the liquid is hot enough, when you pour the liquid into the tumbler the glass on the inside becomes hotter than the glass on the outside. The glass on the inside therfore gets bigger than the glass on the outside. This difference in size caused by the difference in temperature causes the glass to bend, not much, but just enough to break.

Hope that helped.Jeff

What are facts about the three types of motion?

An object in motion remains in motion unless acted upon by an unknown force

objects in motion are affected by:

-Gravity

-Friction

-Mass

-Force

-and other objects

Objects in Freefall have a maximum velocity in freefall

an object that is thrown straight up has no velocity during the middle of the time from it takes to toss and hit the ground.

gravity is a constant 9.8m/s

What is role of cooling coil behind the refrigerator?

The actual role of the cooling coil behind (or underneath in some cases as well as inside the side walls on some models) is to dissipate the heat collected from INSIDE the refrigerator as a result of the cooling cycle. If you would like more information on the subject, please follow the related links below to "How Stuff Works" The motor typically dissipates heat through a separate heat sink to prevent from excess heat being reintroduced into the refrigerator.

Where and Why was the telegraph invented?

The first telegraph was invented in 1835 by a man who goes by Samuel Morris. He invented it in the Univsersity of New York, in New York.

The reason why it was invented is because if you think of our daily life, how much do we text? How much to we call each other? Writing and sending letters took days to weeks. The telegraph was made for much faster communication, then it advanced into a telephone, and so on, but overall, it was invented for faster communication.

What acid is used in fertilizer?

it contains Phosphoric Acid as well as its potassium salts K3PO4, K2HPO4, KH2PO4

What is the name of the first nuclear bomb?

trinity was the code of the detonation of the nuclear deviceit was the first nuclear bomb in the world

How do you add a switch to a 240 volt circuit?

As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

What factors control the strength of an electromagnet?

The strength of an electromagnet is influenced by factors such as the number of coils in the wire, the amount of current flowing through the wire, the material of the core, and the shape of the electromagnet. Increasing the number of coils, current, and using a core material with high magnetic permeability can increase the strength of an electromagnet.

Why are magnets useful?

because they either attract or repel from each other depending on what side is against one side. You can do a lot with magnets for example stick things to the fridge or pick up loose pieces of metal or even shrapnel or broken medal that fell on the floor that you don't want someone to stand on.

They are essential for generating electricity.

How a battery provides energy to a circuit?

In very simple terms, there are two chemicals in a battery - one chemical wants more electrons and the other chemical wants to get rid of electrons. When a path (i.e. circuit) is completed between the two of them (the ends of a typical AA, AAA, D, etc. battery or the two posts on a 9V battery, the electrons are free to move from one post to another. The movement of electrons is current. Different chemicals and/or configurations determine how badly the electrons want to get from one chemical to another. That drive to get from one to another is called voltage potential, and is expressed in volts. How fast the electrons travel between the two chemicals is the flow, or current, and is expressed in Amperes or Amps... for small batteries, it is usually expressed in milliamps because the current is so low. The capacity of the battery is expressed in milliampere-hours which is how many amperes can flow between the chemicals over a given amount of time until the chemicals have exchanged so many electrons that the electrons no longer have any drive to flow between the chemicals anymore.

What is the principle of bullet train?

The principle of a bullet train is based on high-speed rail technology that allows the train to travel at very high speeds by reducing air resistance, using aerodynamic designs, and operating on dedicated tracks. The train is powered by electricity and can reach speeds of over 300 km/h, providing a fast and efficient mode of transportation for passengers.

The force that stops a car from skidding?

The friction between the tires and the road surface is what prevents a car from skidding. This friction helps to maintain traction and control between the tires and the road, allowing the driver to steer and brake effectively. Factors such as tire quality, road conditions, and driving speed can all affect the amount of friction available to prevent skidding.

What would be equivalent international standard like BS for Indian standard IS 513?

The equivalent international standard for Indian standard IS 513 is EN 10130. Both standards specify the general requirements for cold-rolled low-carbon steel flat products for cold forming, with similar technical parameters and characteristics.

In a conversion factor what is special about the fraction used?

The fraction is always exactly equal to ' 1 ', and so it doesn't
change the value of the quantity that you multiply by it.

Who invented laser tag?

Laser tag was invented by George A. Carter III, an American engineer, in 1977. He created a system called "Photon" that used infrared technology for players to tag each other in simulated combat games.

What are examples of chemical change applied in industry?

Petrochemical refining for oil, petrol / gasoline

Manufacture of plastics

Production of ammonia by the Haber process for use as fertilizer, other feedstocks for other chemicals

In a laser printer the laser beam is initiated and directed toward the octagonal mirror called the mirror?

The laser beam in a laser printer is initiated from a laser diode, not a mirror. The laser beam is then directed by a rotating polygon mirror, not an octagonal mirror, which reflects the beam onto the drum surface to create the print image through a process called electrostatic printing.

What are the effects of using trichlorocarbanilide in toilet soap?

Trichlorocarbanilide, commonly known as TCC, is an antimicrobial agent used in soaps. However, it has been associated with skin allergies, disruptions in hormonal function, and environmental concerns due to its persistence in water systems. Its long-term effects on human health are still being studied.

What is the difference between distance and similarity?

Distance measures how far apart two points are in a space, while similarity measures how alike two objects are. In terms of calculation, distance is typically computed using metrics like Euclidean distance, Manhattan distance, or cosine distance. Similarity is often calculated using metrics like cosine similarity, Jaccard similarity, or Pearson correlation.

What is a input motion?

An input motion refers to the act of providing input or commands to a device, system, or software through physical or digital interactions, such as touching a screen, pressing buttons, or using a keyboard or mouse. It is how users communicate with and control technology to perform tasks or functions.

Which way should you face your car subs for the loudest and best sound?

Original-:-closet to back of youre car facing the back of your car because this will maximize sound re verbs and reduces distortion giving you better quality wich= better sound.

1st Revision-:-Personally speaking, I have 2 Alpine Type E's in a sealed box running at 150 RMS each and I have tried every possible position for them in my trunk. When testing the possible positions I found that putting the subs face up seems to make the most drastic change in bass. I theorize that the reasons would include that since subwoofers are uni-direction they efficiently distribute the bass out along the body of the vehicle. The waves traveling to the back of the vehicle hit the top of the trunk and the back at the same time both colliding in the middle to disperse toward the sub box creating a hard hitting bass. Then in the midst of all this the outer reactions to the waves, cycle to the front of the car back into the cab part where the other direction of the wave-dispersment was continuing thus bringing out more louder and longer bass. however the effect of ported boxes can make a difference.

How can one use illusion to enter a residence?

Using illusions to enter a residence involves creating a deceptive appearance or scenario, such as disguising oneself as someone else or creating a distraction that diverts attention away from your entry. However, it's important to note that using illusions for unlawful entry is illegal and unethical.

What does each coloured wire mean for home lighting?

Electrons do not know color codes. They flow as potential is applied [voltage] from positive to a more negative potential. Therefore the color code applies to humans that can read the color code. The COLOR CODE while not universal applies to weiring whereby if you start at the source with one color that color must remain constant till the end of the circuit Reason being that if you branch in the middle you will know which wire you are working with and its use and potential. Most county have their own color code some follow a set of protocols some do not except it must follows a color code. I may add that passive components have a recognized and well set color code to recognize the component visually by the color code.